[Editor’s note: This article first appeared in the March 2014 LocationTech newsletter.] GeoMesa is an open-source, LocationTech project that manages big geo-time data within the Accumulo key-value data store so that those data can be indexed and queried at scale … Read More

CCRi was delighted to host the second meeting of the Cville Data Science group earlier this month. A full house packed our conference room, and a good time was had by all. The lineup for the talks included three CCRi … Read More

When building web based data visualization applications, you usually want to defer rendering and styling to as late as possible in the request lifecycle. This gives your users the most flexibility when composing and customizing intelligent visualizations of data. For … Read More

See our press release announcing the offering of GeoMesa with the Boundless OpenGeo Suite: Accumulo Offering for Spatio-Temporal Capabilities with OpenGeo Suite Alexandria, VA October 27, 2013 — Boundless and CCRi announce the launch of a new platform for building … Read More

Today, Anthony Fox is presenting this paper at the IEEE Big Data 2013 Conference. Abstract: Big Data has driven the need for datastores that can scale horizontally leading to the development of many different NoSQL database implementations, each with different … Read More

I recently discovered Incanter which looks really promising for statistical computing on the JVM. Incanter is written in Clojure, a lisp like functional programming language for the JVM. We have been using Scala, a hybrid OO/functional programming language for the JVM, … Read More

I noticed a question on the Analytics X Prize forum about how to determine the zip code for homicides with latitude and longitude values. While there are a plethora of online tools (Google Maps, etc) that will do this for … Read More

For my second attempt at predicting homicides in Philadelphia, I included roads in the model. I got the roads data from the census link in the last post, imported the roads into my PostgreSQL/PostGIS database, and visualized the resulting prediction … Read More

The Analytics X Prize evaluates entries by comparing the RMSE of the predicted proportion of homicides per zip code versus the actual proportion of homicides per zip code. RMSE is a standard way of comparing the predictive quality of models … Read More